1 files changed, 20 insertions, 0 deletions
diff --git a/db/post_migrate/20220201193033_add_unique_index_to_vulnerability_finding_links_with_truncate.rb b/db/post_migrate/20220201193033_add_unique_index_to_vulnerability_finding_links_with_truncate.rb
new file mode 100644
index 00000000000..cc9dabdf624
--- /dev/null
+++ b/db/post_migrate/20220201193033_add_unique_index_to_vulnerability_finding_links_with_truncate.rb
@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+class AddUniqueIndexToVulnerabilityFindingLinksWithTruncate < Gitlab::Database::Migration[1.0]
+  disable_ddl_transaction!
+
+  NAME_URL_INDEX_NAME = 'finding_link_name_url_idx'
+  URL_INDEX_NAME = 'finding_link_url_idx'
+
+  def up
+    execute('TRUNCATE TABLE vulnerability_finding_links')
+
+    add_concurrent_index :vulnerability_finding_links, [:vulnerability_occurrence_id, :name, :url], unique: true, name: NAME_URL_INDEX_NAME
+    add_concurrent_index :vulnerability_finding_links, [:vulnerability_occurrence_id, :url], unique: true, where: 'name is null', name: URL_INDEX_NAME
+  end
+
+  def down
+    remove_concurrent_index :vulnerability_finding_links, [:vulnerability_occurrence_id, :name, :url], name: NAME_URL_INDEX_NAME
+    remove_concurrent_index :vulnerability_finding_links, [:vulnerability_occurrence_id, :url], name: URL_INDEX_NAME
+  end
+end